VERFAHREN ZUR BESEITIGUNG DES SCHWEFELGEHALTES VON ABGASEN MIT GERINGEM GEHALT AN SCHWEFELDIOXID

VERFAHREN ZUR BESEITIGUNG DES SCHWEFELGEHALTES VON ABGASEN MIT GERINGEM GEHALT AN SCHWEFELDIOXID

The invention relates to a method for cleaning exhaust gases weak in sulphur dioxide, or sulphur dioxide and hydrogen sulphide. In order to remove the sulphur content of an exhaust gas, the exhaust gas is absorbed into a solution containing sulphide. Thereafter into the solution is added an agent wh...

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Hauptverfasser: TALONEN,TIMO T.,FI, POIJAERVI,JAAKKO T.,FI, METSAERINTA,MAIJA-LEENA,FI
Format: Patent
Sprache:ger
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CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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creator TALONEN,TIMO T.,FI
POIJAERVI,JAAKKO T.,FI
METSAERINTA,MAIJA-LEENA,FI
description The invention relates to a method for cleaning exhaust gases weak in sulphur dioxide, or sulphur dioxide and hydrogen sulphide. In order to remove the sulphur content of an exhaust gas, the exhaust gas is absorbed into a solution containing sulphide. Thereafter into the solution is added an agent which causes any unstable compounds of sulphur and oxygen, such as thiosulphate and polythionates, which are formed in the scrubbing solution, to decompose into elemental sulphur and sulphate in the autoclave whereinto the scrubbing solution is fed. The pH of the solution emerging from the autoclave is adjusted to stay within the range 2.0-2.9.
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subjects CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title VERFAHREN ZUR BESEITIGUNG DES SCHWEFELGEHALTES VON ABGASEN MIT GERINGEM GEHALT AN SCHWEFELDIOXID
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